BMW Mini R55 R56 R57 Left Right Lower Wishbone Suspension Control Arm Set

Mini R55 R56 R57 Left Right Lower Control Arm Kit is a set of original parts from the Control Arms & Ball Joints category, designed for installation on both sides of the front axle. The kit ensures consistent, predictable car handling and stable suspension performance under typical road conditions. It's a practical solution for Mini owners who want to restore the correct geometry and rigidity of the front suspension system in a single installation.

Specifications and technical data

• SKU: 6772301-1 6772302-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 6772301
• Substitutable numbers: 31126772301, 6772301, 31124048627, 4048627, 31126772302, 6772302, 31124048628, 4048628, BG, 17137800292, 7800292, 17137785013, 7785013
• Location on the vehicle: Right, Left
• Category: Control Arms, Ball Joints & Assemblies

Kit Purpose and Construction

The presented kit includes lower suspension control arms intended for the left and right sides of the vehicle. This set allows for simultaneous replacement of components on both sides of the axle, which minimizes differences in suspension operation and facilitates subsequent wheel alignment. The control arms are factory-matched to the structural solutions used in Mini models of the R55, R56, and R57 series, thus preserving the proper kinematics of the front suspension.

These components belong to the group of sub-assemblies responsible for wheel guidance, transferring loads from the hub to the body, and maintaining the set camber and caster angles of the steering knuckle. A properly selected set of lower control arms reduces unwanted play, improves steering precision, and contributes to vehicle stability during braking and cornering.

Benefits of Installing the Lower Control Arm Kit

Using a complete set of lower control arms in Mini R55, R56, and R57 offers a range of practical operational benefits:

• Consistent Suspension Performance – replacing both sides simultaneously avoids differences in suspension stiffness and response between the left and right sides.
• Improved Straight-Line Stability – properly functioning control arms reduce car "wandering" and improve directional stability at higher speeds.
• More Precise Handling – reduced play in mounting points translates to a more direct steering response.
• Optimal Conditions for Geometry Alignment – a new set of components facilitates correct adjustment of wheel alignment and angles.

For Mini owners experiencing clunks in the front suspension, instability during braking, or uneven tire wear, installing such a kit is a logical and technically justified service step.

Product Characteristics and Fitment

The lower control arm kit has been designed to maintain factory mounting points and proper steering knuckle guidance. This allows for installation based on standard structural solutions, without the need for modifications to the body or auxiliary suspension components. The product is from the Mini line, which helps maintain compliance with the original vehicle specifications.

The placement on the vehicle covers both sides of the axle – right and left – which is particularly important when planning comprehensive suspension maintenance. In conjunction with correctly selected shock absorbers, springs, and stabilizer links, the lower control arm kit allows for the restoration of predictable, neutral vehicle behavior in everyday use.

Professional Installation and Operation

Due to the crucial role control arms play in the drivetrain, installation by a specialized service center using appropriate tools and tightening procedures is recommended. After installing the kit, it is advisable to perform a wheel alignment check to fully utilize the potential of the new components and minimize tire wear.

For those who wish to gain a broader understanding of how control arms affect vehicle behavior and the relationships between them, shock absorbers, and stabilizers, we recommend the guide article: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This is a valuable addition to your knowledge when planning more extensive suspension service work.

Related Products and Mini Suspension System Expansion

If you are looking for other components from the Control Arms & Ball Joints category dedicated to the Mini brand, check out the Mini Control Arms & Ball Joints available in our store. This will allow you to select a cohesive set of suspension components, tailored to the specific version of your car and the planned scope of repair.